Changeset e2cc9a0 in mainline for kernel/genarch/src/kbd/ns16550.c

Timestamp:

2006-10-06T22:37:15Z (18 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

33b1903

Parents:

233af8c5

Message:

Add support for interrupt mapping in the Sabre PCI controller.
Add support for PCI and EBUS interrupt mapping via the OpenFirmware device tree.
Unfortunatelly, the code is not capable enough to earn single ns16550 interrupt.
I suspect something needs to be enabled in the EBUS registers.

File:

• kernel/genarch/src/kbd/ns16550.c (modified) (2 diffs)

kernel/genarch/src/kbd/ns16550.c

@@ -91 +91 @@
         sysinfo_set_item_val("kbd.irq", NULL, 0);
         sysinfo_set_item_val("kbd.address.virtual", NULL, (uintptr_t) kbd_virt_address);
+        
+        ns16550_ier_write(IER_ERBFI);                           /* enable receiver interrupt */
+        
+        while (ns16550_lsr_read() & LSR_DATA_READY)
+                (void) ns16550_rbr_read();
 }
 
@@ -145 +150 @@
         uint8_t x;
 
-        while (((x = ns16550_lsr_read() & LSR_DATA_READY))) {
+        while (ns16550_lsr_read() & LSR_DATA_READY) {
                 x = ns16550_rbr_read();
                 if (x != IGNORE_CODE) {